Abel ken worthy



(No Model.)

A. KENWORTHY. BXPANSIBLB DRUM FOR GOILINGSHEBT METAL.

Patented Feb. 9, 1897.

INVENTORY WITNESSES fiiv l a w u UNITED STATES PATE T Crrrcn.

ABEL KENWORTHY, OF WVATERBURY, CONNECTICUT, ASSIGN OR TO THE BENEDICT & BURNHAM MANUFACTURING COMPANY, OF SAME PLACE.

EXPANSIBLE DRUM FOR COILING SHEET METAL.

SPECIFICATION forming part of Letters Patent N 0. 576,677, dated FebruaryQ, 1897. Application filed October 10, 1896. Serial No. 608,449. (No model.)

To aZZ whom it may concern.-

Be it known that I, ABEL KENWORTHY, a citizen of the United States, residing at aterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Expansible Drums for Coiling Sheet Metal; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to produce a simple, inexpensive, durable, and easily-operated expansible drum which shall be adapted for general use and especially adapted for use in coiling sheet metal.

With these. ends in view I have devised the novel construction of which the following description, in connection with the accompanying drawings, is a specification, letters and numbers being used to designate the several parts.

Figure l is a view, partly in elevation and partly in section, on the line a: o: in Fig. clearly illustrating the construction of my novel drum; Fig. 2, a section on the line y y in Fig. 1; Fig. 3, a view of the inner face of one of the end pieces of the drum; Fig. 4, an end view of one of the movable sections, and Fig. 5 is a side and end view of one of the hubs detached.

The several parts comprising my novel drum are carried by a sleeve A, to which the end pieces B of the drum are rigidly secured in any suitable manner. These end pieces are provided with recesses 1, which receive the ends 2 of the radial plates of the movable sections C. The outer surface of each of these sections is an arc-shaped plate 3,which extends from end piece to end piece. At the center of each plate and extending inward radially is a plate 4, which I have shown as cut away at the center, as at 5. Each of these radial plates carries near each end a roller 6 and a pin 7. These pins are engaged by springs 8, the action of which is to move the sections inward and hold them at their retracted position. Each of the springs 8 has a base-plate at a right angle thereto, (see Fig.

- contract the drum.

1,) said base-plate having two screws passing through it and into holes in the end pieces B at one side of a recess 1. (See Fig. 3.)

D denotes a shaft lying within the sleeve and adapted to be moved longitudinally therein, and E denotes hubs lying outside of the sleeve and rigidly secured to the shaft by pins 9, which pass through slots 10 in the sleeve (see dotted lines, Fig. 1) and through the shaft. The length of the slots 10 is indicated by dotted lines in Fig. 1. The line of section on which Fig. 1 is drawn is such that the slot would not be represented by full lines. These hubs are provided with inclines 11, which are engaged by the rollers and act to move the sections outward against the power of the springs when the hubs are moved in one direction, and with slots 12, which receive the radial plates 4. It will be seen, therefore, that rotation of the shaft must necessarily carry the sleeve, hubs, and movable sections also, and that as pins Qpass through slots in the sleeve longitudinal movement of the shaft will carry the hubs also and will move the sections in or out, as may be required. In the drawings I have shown the movable sections in the expanded position, that is to say, rollers 6 have passed up the inclines and rest upon the high portions of the hubs and hold the movable sections in the expanded position against the power of Suppose now that it is desired to The shaft is moved toward the right, as seen in the drawings, causing the rollers to pass down the inclines and permitting the springs to move the sections inward to the retracted position.

The special mode in which longitudinal movement is imparted to the shaft is not of the essence of my invention and is therefore not described in this specification. It is sufficient for the purposes of my invention that longitudinal movement be imparted to the shaft in any ordinary or preferred'manner.

In use the drum is expanded before metal is wound thereon. After the coil is wound the operator moves the sections to the retracted position, which enables him to remove the coil instantly, thus doing away with the the springs.

necessity for partially uncoiling the coil of metal in order to remove it from the drum, as is necessary where ordinary drums are used.

Owing to the fact that the arc-shaped plates extend from end to end of the drum they are thereby adapted to equally support all portions of a coil without regard to differences in the length of said coil due to the winding thereon of different widths of sheet metal.

Having thus described my invention, I claim- 1. An expansible and rotatable drum comprising movable sections whose outer surfaces consist of arc-shaped plates extending from end to end of the drum, longitudinally-movable hubs provided with inclines which engage the sections and move them outward when moved in one direction and springs which move the sections inward when the hubs are moved in the opposite direction, a rotatable shaft, and means supported by said shaft for rotating and for guiding the plates in radial directions.

2. An expansible and rotatable drum comprising movable sections whose outer surfaces consist of arc-shaped plates extending from end to end of the drum and at the centers of which are inwardly-extending radial plates, rollers carried by said radial plates, longitudinally-movable hubs having inclines which are engaged by the rollers and move the sections outward when the hubs are moved in one direction and springs which move the sections inward when the hubs are moved in the opposite direction, a rotatable shaft, and means supported by said shaft for rotating and for guiding the plates in their radial movements.

3. An expansible and rotatable drum comprising movable sections whose outer surfaces consist of arc-shaped plates extending from end to end of the drum and at the center of which are inwardly-extending radial plates, a rotatable shaft by which the drum is carried and which is adapted to be moved longitudinally, inclines carried by said shaft which engage the radial plates and move the sections outward when the shaft is moved longitudinally in one direction, springs which move the sections inward when the shaft is moved longitudinally in the opposite direction, and end plates supported by said shaft and having means for guiding the plates in their radial movements.

4. An expansible and rotatable drum comprising movable sections whose outer surfaces consist of arc-shaped plates extending from end to end of the drum and at the center of which are inwardly-extending radial plates, a sleeve by which the drum is carried, a shaft adapted to be moved longitudinally, within said sleeve rollers carried by the radial plates, inclines movable along said sleeve which are engaged by the rollers to move the sections outward when the shaft is moved longitudinally in one direction, springs which move the sections inward when the shaft is moved longitudinally in the opposite direction, and connections between said shaft and inclines whereby the latter are moved by the former.

5. An expansible drum com prisingmovable sections whose outer surfaces consist of areshaped plates at the center of which are inwardly-extending radial plates, a shaft by which the drum is carried and which is adapted to be moved longitudinally, rollers carried by the radial plates, hubs rigidly secured to the shaft and provided with grooves which receive the radial plates and with inclines which are engaged by the rollers for the purpose set forth and springs which move the sections inward as the rollers pass down the inclines.

6. An expansible drum comprising asleeve having slots 10, end pieces secured to the said sleeve and provided with recesses 1, movable sections whose outer surfaces consist of areshaped plates at the center of which are inwardly-extending radial plates the ends of which engage the recesses, longitudinallymovable hubs having inclines which are e11- gaged by the radial plates and move the latter outward and springs which act to move the sections inward.

In testimony whereof I affix my signature in presence of two witnesses.

ABEL KENYVORTHY.

\Vitnesses:

A. M. WoosrER, SUSAN V. IIELEY. 

